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Medical Conditions

  • Chlamydiosis (psittacosis, parrot fever, ornithosis) is a common disease of birds caused by a bacterial organism called Chlamydia psittaci. Birds with chlamydiosis exhibit a decreased appetite, weight loss, lethargy, diarrhea, nasal or ocular discharge, a fluffed-up appearance, and breathing difficulties. Testing and treatment are discussed. Chlamydiosis is a zoonotic disease, meaning that it can be passed to humans, so all new pet birds should be tested for this disease.

  • Chronic bronchitis (also known as chronic obstructive pulmonary disease or COPD) is a slowly progressing inflammatory condition of the lower airways. The most common sign is a chronic dry cough. The diagnosis, treatment, and prognosis are outlined in this handout.

  • This handout summarizes the normal function of the dog heart, and outlines the abnormalities and changes associated with degeneration of the four different valves found in the heart. An explanation is provided of clinical signs associated with valve disease, as well as the recommended tests and treatments for this condition. Staging of heart disease is also discussed.

  • Chronic egg laying occurs when a female bird lays more eggs in one clutch than the usual number or lays repeated clutches of eggs. Chronic egg laying may lead to malnutrition and egg binding. There are behavioral and medical interventions to stop chronic egg laying.

  • Chronic hepatitis is a progressive inflammatory liver condition. Although there are many potential causes, often the underlying cause is not identified. Initially there may be no clinical signs but as liver scarring increases, signs can include decreased appetite, vomiting, diarrhea, abnormal bleeding and a bloated appearance. Diagnosis, treatment and prognosis are discussed.

  • The kidneys have many functions. They are primarily responsible for removing waste from the body and unfortunately in some dogs they will begin to fail at this task. Various tests will be done to determine the stage of kidney disease. Treatment will be recommended to help preserve the remaining kidney function and improve quality of life. Most dogs will respond well to treatment and can live a good life.

  • Chronic lymphocytic leukemia is a slowly progressing cancer of a type of white blood cell called a lymphocyte. It can develop at any age but is more typically detected in middle-aged to senior dogs. It also seems to be more prevalent in German Shepherds and Golden Retrievers. This disease is often asymptomatic and detected on routine lab screening. Further diagnostic procedures, as well as treatments and prognoses, are described in this handout.

  • Clostridial enterotoxicosis is a complex and poorly understood syndrome characterized by diarrhea that is associated with the bacteria Clostridium perfringens (CP). It is associated with acute or chronic diarrhea. Clostridial enterotoxicosis is not caused by the bacteria directly, but by a toxin produced by the bacteria.

  • The general condition of your dog's skin and coat are good indicators of his health. A healthy coat should be shiny and smooth, not brittle or coarse, and healthy skin should be supple and clear, not greasy, flaky, or bumpy. Selective breeding has led to the development of dogs with various coat characteristics requiring varying grooming needs. Nutrition also plays an important role in skin and coat maintenance.

  • Coccidioidomycosis is a fungal disease caused by the soil fungus Coccidioides immitis or Coccidioides posadii. The early signs of coccidioidomycosis include fever, lethargy, lack of appetite, coughing, and joint pain. Diagnosis is by biopsy of lesions or blood testing for antibodies to the Coccidioides organism. The prognosis for recovery is dependent of the extent of lesions in the dog’s body.